{ital B}{sub {ital c}} meson production in {gamma}{gamma} collisions and the charm content of the photon

Journal Article · Thu Aug 01 04:00:00 EDT 1996 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.54.1891· OSTI ID:286400

Martynenko, A P; Saleev, V A ^[1]

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1. Samara State University, Samara, 443011 (Russia)

Based on the photon structure function formalism we calculate the {ital B}{sub {ital c}}({ital B}{sub {ital c}}{sup {asterisk}}) meson production cross section in {gamma}{gamma} collisions via the partonic subprocess {ital c}{gamma}{r_arrow}{ital B}{sub {ital c}}({ital B}{sub {ital c}}{sup {asterisk}}){ital b}. It is shown that this approach gives the same results for {ital B}{sub {ital c}}({ital B}{sub {ital c}}{sup {asterisk}}) meson cross sections as the direct leading order QCD calculation of the subprocess {gamma}{gamma}{r_arrow}{ital B}{sub {ital c}}({ital B}{sub {ital c}}{sup {asterisk}}){ital b{bar c}} at small energy. However, as opposed to the direct QCD calculation we have obtained an increase in the {ital B}{sub {ital c}}({ital B}{sub {ital c}}{sup {asterisk}}) meson cross section at large energies. We have found also an additional contribution to the {ital B}{sub {ital c}} meson production via the nonperturbative fluctuations {gamma}{leftrightarrow}{ital J}/{psi}. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 286400
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 3 Vol. 54; ISSN 0556-2821; ISSN PRVDAQ
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BEAUTY MESONS
C QUARKS
CHARMED MESONS
CROSS SECTIONS
FLUCTUATIONS
J PSI-3097 MESONS
PARTICLE PRODUCTION
PERTURBATION THEORY
PHOTON-PHOTON INTERACTIONS
PHOTONS
QUANTUM CHROMODYNAMICS
STRUCTURE FUNCTIONS